
1.PROFIBUS-DP MASTER FUNCTIONS SETTING B-63994EN/02
- 14 -
Bus Parameter Settings Corresponding to Each Transfer Rate
Bus parameter Setting
(1) STATION NO. 0 to 125
(2) BAUDRATE(Kbps)
≦187.5
500 1500 3000 6000 12000
(3) BP FLAG 0 0 0 0 0 0
(4) MIN SLAVE INT 1 1 1 1 1 1
(5) POLL TIME OUT 1000 1000 1000 1000 1000 1000
(6) DATA CONTROL 100 100 100 100 100 100
(7) T SL 100 200 300 400 600 1000
(8) MIN T SDR 11 11 11 11 11 11
(9) MAX T SDR 60 100 150 250 450 800
(10)T QUI 0 0 0 3 6 9
(11)T SET 1 1 1 4 8 16
(12)TTR 65000 65000 65000 65000 65000 65000
(13)G 10 10 10 10 10 10
(14)HSA 126 126 126 126 126 126
(15)MAX RETRY 1 1 1 2 3 4
(16)CLASS2 NAME This parameter need not be set.
(17)MASTER USER DATA 0 0 0 0 0 0
Viewing this table for parameter setting:
First, determine the value of BAUDRATE. Then, set the other
parameters according to the set baud rate.
NOTE
For multiple master communication, satisfy the
following conditions:
- The value set for STATION NO. for a master
station is not used as another master station
number.
- The same values are set for bus parameters (2)
and (7) to (15) for all master stations.
- When a larger value is set for T SET, T SL is
larger than T ID1.
(T ID1 = 33 + 2 + 2 × T SET + T QUI)